And Liquid Contact (e.g., Scrubbing, Sorption, Etc.) Patents (Class 95/42)
  • Patent number: 9393515
    Abstract: In a method for purifying a flow rich in carbon dioxide and containing at least one impurity lighter than carbon dioxide, the flow is cooled in a heat exchanger (7) and partially condensed, the partially condensed flow is sent to a first phase separator (9) operating under a first pressure, a gas from the first phase separator is compressed and sent to a second phase separator (31) operating under a second pressure higher than the first pressure, a first liquid (11) is sent from the first phase separator to a housing (15) operating under a pressure lower than the first pressure, and a second liquid (33) is sent to the housing.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: July 19, 2016
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Alain Briglia, Philippe Court, Arthur Darde, Ludovic Granados, Jean-Pierre Tranier, Xavier Traversac
  • Patent number: 9352273
    Abstract: There is provided a dehydration-compression system 10 in which CO2 loss is suppressed, and a CO2 recovery system including the dehydration-compression system. The dehydration-compression system 10 of the present invention includes multiple compressors 50 and a dehydration device 60. The dehydration device 60 includes: a contactor 62 which removes H2O contained in CO2 by absorbing the H2O into an dehydration solvent; a recovery part 74 which recovers the CO2 from the dehydration solvent discharged from the contactor 62; and a first circulating passage L31 which carries the CO2 released from the recovery part 74 to the upstream side of the contactor 62.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: May 31, 2016
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Masayuki Inui, Takahito Yonekawa, Cole Maas, Tatsuya Tsujiuchi
  • Patent number: 9181361
    Abstract: Provided are systems and methods for separating a purge gas recovered from a polyethylene product. The method includes recovering a polyethylene product containing one or more volatile hydrocarbons from a polymerization reactor and contacting the polyethylene product with a purge gas to remove at least a portion of the volatile hydrocarbons to produce a polymer product having a reduced concentration of volatile hydrocarbons and a purge gas product enriched in volatile hydrocarbons. The purge gas product is compressed to a pressure of 2,500 kPaa to 10,000 kPaa, and is then cooled and separated into at least a first product, a second product, and a third product. A portion of one or more of the first, second, or third products is then recycled as a purge gas, to the polymerization reactor, or to the purge gas product enriched in volatile hydrocarbons prior to compression, respectively.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: November 10, 2015
    Assignee: Univation Technologies, LLC
    Inventors: Mark W. Blood, Randall L. Force, Theodore D. Duncan, George W. Schwarz, Jr., Daniel W. Mosser, Donald A. Fischer, Robert D. Olson, James Leland Swecker, II, Cloid Russell Smith, III
  • Patent number: 8961663
    Abstract: An apparatus that separates and recovers CO2 from a CO2 absorbent that has absorbed CO2 includes a regeneration tower configured to apply heat to the CO2 absorbent that has absorbed CO2, configured to separate and remove CO2 from the CO2 absorbent, configured to exhaust CO2 gas, and configured to regenerate the CO2 absorbent, a plurality of compressors configured to compress the CO2 gas exhausted from the regeneration tower, a dehydration device provided between the plurality of compressors and configured to remove moisture from the compressed CO2, and a line configured to supply air or N2 gas into the dehydration device to preliminarily operate the dehydration device until a stable state is achieved before starting the compressor.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: February 24, 2015
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Taku Asano, Tatsuya Tsujiuchi, Richard Reinke
  • Publication number: 20140366723
    Abstract: A device for separating liquid from gas in a well flow when compressing the well flow comprises a liquid separator (1?) having an inlet (13) for the well flow, an outlet (5) for gas and an outlet (4) for liquid. According to the invention separated liquid from the liquid separator (1?) is fine-divided in connection with the liquid outlet (4), and the fine-divided liquid is supplied into the gas outlet (5) at a mixing point (8) downstream the liquid separator (1?) and upstream a compressor (11).
    Type: Application
    Filed: June 24, 2014
    Publication date: December 18, 2014
    Inventors: Kjeli Olav Stinessen, Geir Inge Olsen
  • Patent number: 8858680
    Abstract: The present invention is directed to a method and a system for separating oxygen from air. A compressible air stream that contains oxygen is mixed in a substantially co-current flow with an incompressible fluid stream comprising an incompressible fluid in which oxygen is capable of being preferentially absorbed. Rotational velocity is imparted to the mixed streams, separating an incompressible fluid in which at least a portion of the oxygen is absorbed from other compressible components of the air stream. The compressible air stream may be provided at a stream velocity having a Mach number of at least 0.1.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: October 14, 2014
    Assignee: Shell Oil Company
    Inventors: Frederik Arnold Buhrman, Jingyu Cui, Mahendra Ladharam Joshi, Stanley Nemec Milam, Scott Lee Wellington
  • Patent number: 8852318
    Abstract: In a method for compressing a water-containing CO2-rich fluid wherein the CO2-rich fluid is compressed in a compressor located upstream from the compression step, an antifreeze agent is injected into the water-containing CO2-rich fluid in order to lower the water solidification temperature. The antifreeze agent-containing CO2-rich fluid is frozen, water is extracted from the frozen fluid, and the frozen fluid is compressed in the compressor.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: October 7, 2014
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'exploitation des Procedes Georges Claude
    Inventors: Alain Briglia, Arthur Darde
  • Patent number: 8790452
    Abstract: A system adapted to separate a natural gas feed stream into a sweetened gas stream, at least one liquid waste stream and at least one gaseous waste stream, and to discharge, recover or destroy the at least one liquid waste stream and the at least one gaseous waste stream.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: July 29, 2014
    Inventor: Richard Paul Posa
  • Patent number: 8747520
    Abstract: The present invention are methods for removing preselected substances from a mixed flue gas stream characterized by cooling said mixed flue gas by direct contact with a quench liquid to condense at least one preselected substance and form a cooled flue gas without substantial ice formation on a heat exchanger. After cooling additional process methods utilizing a cryogenic approach and physical concentration and separation or pressurization and sorbent capture may be utilized to selectively remove these materials from the mixed flue gas resulting in a clean flue gas.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: June 10, 2014
    Assignee: Battelle Memorial Institute
    Inventors: Mark D. Bearden, Paul H. Humble
  • Patent number: 8728200
    Abstract: A system for recycling a work gas used in a thermal reactor for treating sample materials includes a thermal reactor using a work gas from a first source mixed with carrier gases. The work gas has a boiling point higher than the carrier gases. The system includes a pump, a condenser which converts the work gas into a liquid, and a scrubber.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: May 20, 2014
    Assignee: Stion Corporation
    Inventor: Robert D. Weiting
  • Patent number: 8641802
    Abstract: From the CO2-containing stream of process gas obtained in a process for the treatment of a CO2-containing stream of process gas, which is obtained in the production of pure synthesis gas from raw gas in the partial oxidation of heavy oils, petroleum coke or wastes, or in the gasification of coal, or when processing natural gas or accompanying natural gas, CO2 is removed physisorptively or chemisorptively, and the solvent loaded with CO2 is expanded to a lower pressure for the desorption of CO2. In order to generate CO2 as pure as possible, the contaminated CO2 is condensed to at least 60 bar[a] or below its critical temperature to at least 70 bar[a], and the impurities contained in the liquid CO2 are removed by stripping with gaseous CO2 guided in counterflow.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: February 4, 2014
    Assignee: LURGI GmbH
    Inventors: Ulrich Koss, Manfred Meyer, Alexander Schriefl
  • Patent number: 8597404
    Abstract: The present invention is directed to low emission power plant. A compressible feed stream is provided that is derived from a power production unit, where the compressible feed stream contains at least one target compressible component and at least one non-target compressible component, is mixed in a substantially co-current flow with an incompressible fluid stream comprising an incompressible fluid in which the target component(s) is/are capable of being preferentially absorbed. Rotational velocity is imparted to the mixed streams, separating an incompressible fluid in which at least a portion of the target component is absorbed from a compressible product stream containing the non-target compressible component(s). The compressible feed stream may be provided at a stream velocity having a Mach number of at least 0.1.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: December 3, 2013
    Assignee: Shell Oil Company
    Inventors: Frederik Arnold Buhrman, Jingyu Cui, Mahendra Ladharam Joshi, Stanley Nemec Milam, Scott-Lee Wellington
  • Publication number: 20130315818
    Abstract: A gas compressor comprises a source of high pressure fluid and a pressure vessel having a gas inlet for the gas to be compressed, a gas outlet for the compressed gas and a fluid inlet for the high pressure fluid. The compressor is arranged to introduce the high pressure fluid into the pressure vessel via the fluid inlet whereby to compress a volume of gas in the pressure vessel.
    Type: Application
    Filed: February 7, 2012
    Publication date: November 28, 2013
    Inventor: Amitava Roy
  • Patent number: 8585902
    Abstract: The present invention provides a process and an apparatus for transferring a solute from a first fluid to a second fluid immiscible in each other.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: November 19, 2013
    Assignee: Nagarjuna Energy Private Limited
    Inventors: Manoj Kumar Sarkar, Banibrata Pandey, Venkata Sunil Jagani, Venkata Prasad Kutikuppala
  • Publication number: 20130213224
    Abstract: Processes for operating an ammonia stripper at a low pressure in a gas purification system include providing a first side-draw stream from the ammonia stripper; heating the first side-draw stream with a second side-draw stream from a regenerator; providing a stripper offgas stream from the ammonia stripper to a stripper overhead condenser; and utilizing the stripper offgas stream as a heat source for a regenerating system fluidly coupled to the stripper overhead condenser. Also disclosed are systems for implementing the processes.
    Type: Application
    Filed: March 19, 2013
    Publication date: August 22, 2013
    Applicant: ALSTOM TECHNOLOGY LTD
    Inventor: Alstom Technology Ltd
  • Patent number: 8475566
    Abstract: The present invention relates to a method for recovery of carbon dioxide from a gas stream. The method is a two-step method in which carbon dioxide is compressed in the first step, while the residual carbon dioxide is recovered by an absorption process in a subsequent step. The present invention also relates to the use of the method for the recovery of carbon dioxide and a plant for recovery of carbon dioxide.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: July 2, 2013
    Assignee: Union Engineering A/S
    Inventor: Rasmus Find
  • Publication number: 20130125747
    Abstract: Processes for operating an ammonia stripper at a low pressure in a gas purification system include providing a first side-draw stream from the ammonia stripper; heating the first side-draw stream with a second side-draw stream from a regenerator; providing a stripper offgas stream from the ammonia stripper to a stripper overhead condenser; and utilizing the stripper offgas stream as a heat source for a regenerating system fluidly coupled to the stripper overhead condenser. Also disclosed are systems for implementing the processes.
    Type: Application
    Filed: November 17, 2011
    Publication date: May 23, 2013
    Applicant: ALSTOM TECHNOLOGY LTD
    Inventors: Sanjay Kumar Dube, Daniel Nicolaus Secundus Mattstedt, Joseph P. Naumovitz
  • Publication number: 20130055891
    Abstract: The invention relates to a method for treating a gas stream comprising combustion fumes containing CO2 in an initial proportion, water vapor, one or more volatile acid compounds, and one or more additional impurities selected from among oxygen, nitrogen and argon, comprising the steps of: i) compressing the gas stream to a final pressure of 1 bar to 74 bar absolute; ii) cooling the gas stream to a temperature of around ?10° C. to around ?130° C. and eliminating at least one additional impurity; and iii) recovering a CO2-enriched gas stream containing a final proportion of CO2 greater than the initial proportion of CO2 in the stream to be treated. In addition, the method comprises, prior to step i), a step of pre-drying the stream for removing therefrom at least a portion of the water vapor which it contains.
    Type: Application
    Filed: February 25, 2011
    Publication date: March 7, 2013
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Explitation Des Procedes Georges
    Inventors: Bruno Alban, Philippe Arpentinier, Alain Briglia, Serge Moreau, Fabrice Del Corso, Benoit Davidian
  • Publication number: 20130011321
    Abstract: An exhaust gas treatment apparatus comprises an ammonia absorption system and an ammonia conversion system. The ammonia absorption receives ammonia-containing tail gas generated by a semiconductor process, and removes dust from the tail gas, absorbs and decomposes ammonia gas from the tail gas, converts the ammonia gas into aqueous ammonia, and emits the tail gas without the dust and the ammonia to an external environment. The ammonia conversion system receives the ammonia solution from the ammonia absorption system, and converts it into gaseous ammonia, and then converts the gaseous ammonia to produce liquid ammonia by vaporization and cooling-pressurized liquefaction. After that, the liquid ammonia is purified by a purification system to formed hi-purity liquid ammonia.
    Type: Application
    Filed: July 6, 2012
    Publication date: January 10, 2013
    Inventors: HSUEH YUAN LEE, Ding Chung LIOU
  • Publication number: 20120137877
    Abstract: Disclosed is a gaseous fossil fuel fired, indirectly heated, Brayton closed cycle comprising an alkali metal seeded noble gases that is rendered non-equilibrium, electrically conducting in a magnetohydrodynamic (MHD) electric power generator with zero emissions from the combustion products, including physical separation and sequestration of the carbon dioxide (CO2) what is emitted from the fossil fuel, with said cycle combined with a Rankine steam turbine bottoming cycle to compress the noble gas, while another optional new or existing Rankine steam cycle is placed in parallel and separate from the MHD cycle, and it is fired by the solid char remaining if the MHD cycle is fired with the devolatilized coal, and/or with solid coal culm, and/or unburned carbon in coal power plant waste ash, in order to achieve high efficiency at low capital, low operating, and low fuel costs.
    Type: Application
    Filed: November 22, 2011
    Publication date: June 7, 2012
    Inventor: Bert ZAUDERER
  • Patent number: 8182576
    Abstract: The present invention is a biogas processing system having a compressor having a biogas input and output, a pump having a water input and output, a scrubber tower having a mixing chamber connected to a biogas input, a water pump input, a water output, and a processed biogas output, and a filtration member connected to the water output to remove contaminants from the water exiting the first scrubber tower. The system also includes devices for heating and cooling the recycled flow of water to enhance the ability of the water to absorb contaminants from the biogas and the ability of a stripper to remove absorbed contaminants from the water in a closed loop water system, and a controller for closely controlling the operating parameters of the system to achieve safe and optimal operation of the system.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: May 22, 2012
    Assignee: A&B Process Systems Corporation
    Inventors: Kevin L. Roe, David J. Mandli, Amanda M. Neuhalfen
  • Publication number: 20120096861
    Abstract: According to one embodiment, a carbon-dioxide-recovery-type steam power generation system comprises a boiler that generates steam and an exhaust gas, an absorption tower that allows carbon dioxide contained in the exhaust gas to be absorbed in an absorption liquid, a regeneration tower that regenerates discharges a carbon dioxide gas from the absorption liquid, a reboiler that heats the absorption liquid of the regeneration tower, a turbine that is rotationally driven by the steam, a condenser that generates condensate by cooling steam exhausted from the turbine, a compressor that compresses the carbon dioxide gas, and a cooler that cools the carbon dioxide gas, which has been compressed by the compressor, while using a part of the condensate as cooling water. The reboiler is supplied with steam from the turbine and steam generated by the cooling of the carbon dioxide gas at the cooler.
    Type: Application
    Filed: October 20, 2011
    Publication date: April 26, 2012
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takeshi SASANUMA, Nobuo Okita, Takeo Takahashi, Mikio Takayanagi, Takeo Suga, Yuya Murakami, Toshihisa Kiyokuni, Hideo Kitamura
  • Publication number: 20120090463
    Abstract: A process and an apparatus for the treatment of a carbon dioxide-containing flue gas stream are described, at least part of the carbon dioxide present being removed from the flue gas stream in a separating device having in particular an absorption column 7 with the formation of a gas stream having a low carbon dioxide content and a carbon dioxide-rich gas stream. For overcoming the pressure drop caused by the carbon dioxide removal in the absorption column 7, it is proposed that the gas stream having a low carbon dioxide content and formed after the removal of the carbon dioxide from the flue gas stream is subjected to a gas stream compression, for example by means of a flue gas blower 14.
    Type: Application
    Filed: April 8, 2010
    Publication date: April 19, 2012
    Applicant: Linde-Kca-Dresden GmbH
    Inventors: Torsten Stoffregen, Veselin Stamatov, Thomas Walter
  • Publication number: 20120090464
    Abstract: The process consists of a combination of a low temperature CO2 condensation separation step followed by either a physical or chemical solvent scrubbing process. The first step results in the partial pressure of CO2 in the gaseous steam being reduced to a value near the triple point pressure of CO2. Typically, the partial pressure of CO2 is reduced to the range 5.5 bar to 7.0 bar. The second stage process then removes the remaining CO2.
    Type: Application
    Filed: October 12, 2011
    Publication date: April 19, 2012
    Inventor: Rodney J. Allam
  • Publication number: 20120067059
    Abstract: A process for removing carbon dioxide from a fluid comprises the steps of: (a) treating the fluid by bringing it into countercurrent contact with a liquid absorbent in a first absorption zone and thereafter in a second absorption zone to absorb at least part of the carbon dioxide contained in the fluid into the absorbent; (b) depressurizing the loaded absorbent to release a first stream of carbon dioxide and yield a partially regenerated absorbent; (c) recycling a first stream of the partially regenerated absorbent into the first absorption zone; (d) heating a second stream of the partially regenerated absorbent to release a second stream of carbon dioxide and yield a regenerated absorbent; (e) recycling the regenerated absorbent into the second absorption zone; (f) condensing water vapour entrained in the second stream of carbon dioxide by cooling the second stream of carbon dioxide and transferring at least part of the heat recovered to the partially regenerated absorbent by indirect heat exchange.
    Type: Application
    Filed: May 25, 2010
    Publication date: March 22, 2012
    Applicants: JGC Corporation, BASF SE
    Inventors: Torsten Katz, Georg Sieder, Koji Tanaka
  • Publication number: 20120000357
    Abstract: The present invention is a biogas processing system having a compressor having a biogas input and output, a pump having a water input and output, a scrubber tower having a mixing chamber connected to a biogas input, a water pump input, a water output, and a processed biogas output, and a filtration member connected to the water output to remove contaminants from the water exiting the first scrubber tower. The system also includes devices for heating and cooling the recycled flow of water to enhance the ability of the water to absorb contaminants from the biogas and the ability of a stripper to remove absorbed contaminants from the water in a closed loop water system, and a controller for closely controlling the operating parameters of the system to achieve safe an optimal operation of the system.
    Type: Application
    Filed: August 22, 2011
    Publication date: January 5, 2012
    Inventors: Kevin L. Roe, David J. Mandli, Amanda M. Neuhalfen
  • Patent number: 8034159
    Abstract: A method for cleaning hydrocarbons from a gas-vapor medium ejected to the atmosphere, formed while storing oil or gasoline or filling a container therewith is provided. The medium is pumped out and compressed in a gas-liquid jet apparatus due to energy of oil or gasoline supplied by a pump. The formed mixture is separated in a separator, where a pressure of 0.7 to 2.5 MPa is maintained, and gas from the separator is compressed in a jet apparatus by oil or gasoline supplied by a pump. The gas medium cleaned from the hydrocarbons is outputted and the saturated absorbent is directed to a desorber where a pressure is generated to be lower than the pressure in the separator. The liquid medium is removed from the separators and to a container or to a storage tank from which oil or gasoline is simultaneously supplied to pump inlets or to the separators.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: October 11, 2011
    Inventor: Valery Grigorievich Tsegelsky
  • Patent number: 8007567
    Abstract: The present invention is a biogas processing system having a compressor having a biogas input and output, a pump having a water input and output, a scrubber tower having a mixing chamber connected to a biogas input, a water pump input, a water output, and a processed biogas output, and a filtration member connected to the water output to remove contaminants from the water exiting the first scrubber tower. The system also includes devices for heating and cooling the recycled flow of water to enhance the ability of the water to absorb contaminants from the biogas and the ability of a stripper to remove absorbed contaminants from the water in a closed loop water system, and a controller for closely controlling the operating parameters of the system to achieve safe and optimal operation of the system.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: August 30, 2011
    Assignee: A & B Process Systems Corporation
    Inventors: Kevin L. Roe, David J. Mandli, Amanda M. Neuhalfen
  • Publication number: 20110203314
    Abstract: Acid gas is removed from a feed gas using a physical solvent that is regenerated using successive flashing stages after heating of the rich solvent using low-level waste heat that is preferably produced or available within the acid gas removal plant. Especially preferred waste heat sources include compressor discharges of the refrigeration system and/or recompression system for CO2, and/or (low level) heat content from the feed gas.
    Type: Application
    Filed: September 30, 2009
    Publication date: August 25, 2011
    Applicant: Fluor Technologies Corporation
    Inventor: John Mak
  • Publication number: 20110052453
    Abstract: A method and apparatus for removing carbon dioxide and other pollutants from a gas stream having components that work synergistically. The invention includes an ammonia based scrubbing solution for SO2 scrubbing; an SO2 absorption section (250) to create contact between the flue gas and the ammonia based scrubbing solution to remove SO2 from the flue gas; a wet electrostatic precipitator to remove aerosols and fine particulate matter from the flue gas; a regenerable carbonate scrubbing solution for CO2 scrubbing, a CO2 absorption section (252) for removal of CO2 adapted to create contact between the flue gas and the scrubbing solution and which operates at a temperature between 32 and 66 degrees C.
    Type: Application
    Filed: October 31, 2008
    Publication date: March 3, 2011
    Inventors: Christopher McLarnon, Joanna Duncan, Francis Alix, Aytac Sezgi, Wade Amos, Roberto Bosco, Brian Grandjean, Michelle Livingston
  • Publication number: 20110005389
    Abstract: The present invention relates to a process and plant for the recovery of carbon dioxide from a gas stream by means of pressure swing adsorption using an adsorbent, such as X or Y type Zeolite adsorbents. The gas feed stream suitably has a moderate concentration of carbon dioxide, such as gas emitted from the filling bowl of the carbonated drinks bottling plant and is recovered without rinsing or purging the adsorbent with a high purity carbon dioxide gas stream. The process therefore provides the advantage of being capturing carbon dioxide from the effluent that would otherwise be emitted to the atmosphere and captures the carbon dioxide in a manner that minimises operational and capital expenditure. The present invention also relates to a process for utilizing one dry stream from a gas separation unit (adsorption or membrane process) to conduct evaporative cooling of water, which is used as the water in a liquid ring vacuum pump thereby decreasing the vacuum level and improving the performance.
    Type: Application
    Filed: December 12, 2008
    Publication date: January 13, 2011
    Inventors: Paul Anthony Webley, Jun Zhang
  • Publication number: 20110000366
    Abstract: From the CO2-containing stream of process gas obtained in a process for the treatment of a CO2-containing stream of process gas, which is obtained in the production of pure synthesis gas from raw gas in the partial oxidation of heavy oils, petroleum coke or wastes, or in the gasification of coal, or when processing natural gas or accompanying natural gas, CO2 is removed physisorptively or chemisorptively, and the solvent loaded with CO2 is expanded to a lower pressure for the desorption of CO2. In order to generate CO2 as pure as possible, the contaminated CO2 is condensed to at least 60 bar[a] or below its critical temperature to at least 70 bar[a], and the impurities contained in the liquid CO2 are removed by stripping with gaseous CO2 guided in counterflow.
    Type: Application
    Filed: September 5, 2008
    Publication date: January 6, 2011
    Applicant: LURGI GMBH
    Inventors: Ulrich Koss, Manfred Meyer, Alexander Schriefl
  • Publication number: 20100263529
    Abstract: A method for the purification of a feed gas stream containing at least CO2 and at least one impurity with by the incorporation of a purification step, enabling water to be at least partially removed is provided.
    Type: Application
    Filed: July 8, 2008
    Publication date: October 21, 2010
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Bruno Alban, Christophe Claeys, Philippe Court, Arthur Darde, Guillaume De Smedt, Bao Ha, Vladimir Hasanov, Simon Jallais, Christian Monereau, Serge Moreau, Elise Renou, Ivan Sanchez-Molinero, Jean-Pierre Tranier
  • Publication number: 20100218674
    Abstract: A CO2 recovery apparatus according to a first embodiment of the present invention includes: a CO2 absorber that brings flue gas containing CO2 into contact with CO2 absorbing liquid to reduce CO2 in the flue gas; a regenerator that reduces CO2 in CO2 absorbing liquid (rich solvent) that has absorbed the CO2 in the CO2 absorber to regenerate the CO2 absorbing liquid, so that the regenerated absorbing liquid (lean solvent), having CO2 reduced in the regenerator, is reused in the CO2 absorber; a first compressor to a fourth compressor that compress the CO2 gas released from the regenerator; and an O2 reducing apparatus arranged between the second compressor and a second cooler to reduce O2 in the CO2 gas.
    Type: Application
    Filed: October 27, 2009
    Publication date: September 2, 2010
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Keiji Fujikawa, Takuya Hirata, Tatsuya Tsujiuchi, Tsuyoshi Oishi
  • Publication number: 20100139484
    Abstract: A process for producing a pressurised CO2 stream in a power plant integrated with a CO2 capture unit, wherein the power plant comprises at least one gas turbine (1) coupled to a heat recovery steam generator unit (2) and the CO2 capture unit comprises an absorber (18) and a regenerator (21), the process comprising the steps of: (a) introducing hot exhaust gas exiting a gas turbine into a heat recovery steam generator unit to produce a first amount of steam and a flue gas stream (17) comprising CO2; (b) removing CO2 from the flue gas stream comprising CO2 by contacting the flue gas stream with absorbing liquid in an absorber (18) to obtain absorbing liquid enriched in CO2 (20) and a purified flue gas stream; (c) contacting the absorbing liquid enriched in CO2 with a stripping gas at elevated temperature in a regenerator (21) to obtain regenerated absorbing liquid and a gas stream enriched in CO2 (23); (d) pressurising the gas stream enriched in CO2 using a CO2 compressor (24) to obtain the pressurised CO2 stre
    Type: Application
    Filed: January 23, 2008
    Publication date: June 10, 2010
    Applicant: SHELL INTERNATIONAL RESEARCH MAATSCHAPPIJ B.V.
    Inventors: Kuei-Jung Li, Georgios Protopapas
  • Publication number: 20100064725
    Abstract: In a method of treating a hydrocarbon stream, such as a natural gas stream, a partly condensed feed stream (10) is supplied to a first gas/liquid separator (2), where it is separated into a gaseous stream (20) and a liquid stream (30). The liquid stream (30) is expanded and fed (40) into a second gas/liquid separator (3), and the gaseous stream (20) is split into at least two sub-streams (50, 70). A first sub-stream (50) of the at least two sub-streams is expanded, thereby obtaining an at least partially condensed first sub-stream (60), and subsequently fed (60) into the second gas/liquid separator (3). A second sub-stream (70) of the at least two sub-streams is cooled against a cold stream (120), thereby obtaining an at least partially condensed second sub-stream (90, 90a), which is fed (90, 90a) into the second gas/liquid separator (3) from which a gaseous stream (130) and a liquid stream (100, 100a) are removed.
    Type: Application
    Filed: October 23, 2007
    Publication date: March 18, 2010
    Inventors: Jill Hui Chiun Chieng, Akash Damodar Wani
  • Publication number: 20100037772
    Abstract: The present invention is a biogas processing system having a compressor having a biogas input and output, a pump having a water input and output, a scrubber tower having a mixing chamber connected to a biogas input, a water pump input, a water output, and a processed biogas output, and a filtration member connected to the water output to remove contaminants from the water exiting the first scrubber tower. The system also includes devices for heating and cooling the recycled flow of water to enhance the ability of the water to absorb contaminants from the biogas and the ability of a stripper to remove absorbed contaminants from the water in a closed loop water system, and a controller for closely controlling the operating parameters of the system to achieve safe an optimal operation of the system.
    Type: Application
    Filed: August 13, 2008
    Publication date: February 18, 2010
    Inventors: Kevin L. Roe, David J. Mandli, Amanda M. Neuhalfen
  • Publication number: 20090223366
    Abstract: A method of separating/purifying a gas mixture (M), includes a step consisting in capturing at least one gas which can generate anionic species by dissolution in aqueous phase. The invention is characterised in that it also includes the following steps consisting in: suspending an absorbent product in the aforementioned aqueous phase, the absorbent product consisting of a lamellar double hydroxide or a mixed oxide which is believed to be amorphous and which originates from the moderate heat treatment of lamellar double hydroxides having an affinity for the above-mentioned gas; distributing the gas mixture (M) in the aqueous phase; and recovering the adsorbate from the absorbent product in suspension.
    Type: Application
    Filed: November 17, 2006
    Publication date: September 10, 2009
    Applicant: BUREAU DE RECHERCHES GEOLOGIQUES ET MINIERES (B.R.G.M.)
    Inventors: Alain Seron, Fabian Delorme
  • Publication number: 20090101007
    Abstract: The present invention relates to a method for recovery of carbon dioxide from a gas stream. The method is a two-step method in which carbon dioxide is compressed in the first step, while the residual carbon dioxide is recovered by an absorption process in a subsequent step. The present invention also relates to the use of the method for the recovery of carbon dioxide and a plant for recovery of carbon dioxide.
    Type: Application
    Filed: June 6, 2005
    Publication date: April 23, 2009
    Inventor: Rasmus Find
  • Publication number: 20090013868
    Abstract: A process for separating carbon dioxide from a compressed, dried and cooled carbon dioxide containing fluid comprises separating the fluid into at least a carbon dioxide enriched stream, and a carbon dioxide depleted stream, expanding at least part of the carbon dioxide lean stream in an expander, compressing a process stream wherein the power for the compression step is at least in part provided by the power generated by the expander.
    Type: Application
    Filed: July 11, 2007
    Publication date: January 15, 2009
    Inventors: Arthur Darde, Bao Ha, Jean-Pierre Tranier
  • Publication number: 20090013869
    Abstract: The process and the device are used to produce a pressurized gaseous product by low-temperature separation of air in a distillation system, which has at least one high-pressure column (7) and one low-pressure column (8). A process air stream is compressed in a main air compressor. At least a part of the compressed process air stream (1) is introduced (6) into the high-pressure column (7). A first air stream (10, 13, 14, 17, 18), which is formed at least by a part of the process air stream (1), is compressed to a high air pressure (11, 15), which is at least 1 bar above the operating pressure of the high-pressure column (7). A liquid product stream (21, 47) is removed from the distillation system, brought (48, 51) to an elevated pressure in the liquid state, and evaporated or pseudo-evaporated with the first air stream (17) under this elevated pressure by indirect heat exchange (4), and finally drawn off as a gaseous product stream (50, 53).
    Type: Application
    Filed: July 7, 2008
    Publication date: January 15, 2009
    Inventors: Dietrich Rottmann, Christian Kunz
  • Publication number: 20080302240
    Abstract: Produced natural gas containing carbon dioxide is dehydrated and chilled to liquefy the carbon dioxide and then fractionated to produce a waste stream of liquid carbon dioxide and hydrogen sulfide. Natural gas liquids may be first separated and removed before fractionation. After fractionation, the waste stream is pressurized and transmitted to a remote injection well for injection either for disposal of the waste stream and preferably to urge hydrocarbons toward the producing well. A hydrocarbon stream proceeds from fractionation to a methanol absorber system which removes carbon dioxide gas. The hydrocarbon stream is thereafter separated into at least hydrocarbon gas, nitrogen and helium. Some of the nitrogen is reintroduced into a fractionation tower to enhance the recovery of hydrocarbons. A methanol recovery system is provided to recover and reuse the methanol. The hydrocarbons are sold as natural gas and the helium is recovered and sold. Excess nitrogen is vented.
    Type: Application
    Filed: August 22, 2008
    Publication date: December 11, 2008
    Inventor: Donald Leo Stinson
  • Publication number: 20080282881
    Abstract: A method for cleaning hydrocarbons from a gas-vapor medium ejected to the atmosphere, formed while storing oil or gasoline or filling a container therewith is provided. The medium is pumped out and compressed in a gas-liquid jet apparatus due to energy of oil or gasoline supplied by a pump. The formed mixture is separated in a separator, where a pressure of 0.7 to 2.5 MPa is maintained, and gas from the separator is compressed in a jet apparatus by oil or gasoline supplied by a pump. The gas medium cleaned from the hydrocarbons is outputted and the saturated absorbent is directed to a desorber where a pressure is generated to be lower than the pressure in the separator. The liquid medium is removed from the separators and to a container or to a storage tank from which oil or gasoline is simultaneously supplied to pump inlets or to the separators.
    Type: Application
    Filed: July 24, 2006
    Publication date: November 20, 2008
    Inventor: Valery Grigorievich Tsegelsky
  • Publication number: 20080168797
    Abstract: A gas condensate production plant comprises a plurality of separation units in which C2 and/or C3 lighter components are stripped from the separator feeds using compressed heated stripping vapor produced from the feed in respective downstream separation units. Contemplated plants substantially reduce heating and cooling duties by using the waste heat from the compressor discharges in the separation process. Furthermore, the multi-stage fractionation according to the inventive subject matter provides improved gas condensate recovery at reduced energy costs.
    Type: Application
    Filed: June 22, 2005
    Publication date: July 17, 2008
    Applicant: FLUOR TECHNOLOGIES CORPORATION
    Inventor: John Mak
  • Patent number: 7377956
    Abstract: Method and system for processing natural gas containing contaminants through the use of one or more rotary screw compressors. A natural gas containing a contaminant (e.g., water or carbon dioxide and/or hydrogen sulfide) and a contaminant removing agent are combined and processed within a rotary screw compressor. The contaminant removing agent may be a dehydrating agent such as a glycol or a carbon dioxide and/or hydrogen sulfide removing agent such an amine. The method and system of the present invention also may employ a series of rotary screw compressors to process natural gas containing a plurality of contaminants.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: May 27, 2008
    Assignee: RDC Research LLC
    Inventors: Richard P. Cheney, Jr., Brad Salzman
  • Publication number: 20080034965
    Abstract: A combined compressor and dehydrator apparatus including a gas compressor unit with an exhaust through which exhaust gas is expelled from said gas compressor unit; a glycol dehydrator unit with a glycol reboiler; a means of transferring heat from said exhaust of said gas compressor unit to said glycol reboiler of said glycol dehydrator unit; and a skid; wherein said gas compressor unit, said glycol dehydrator unit and said means of transferring heat are fixedly attached to said skid.
    Type: Application
    Filed: November 22, 2006
    Publication date: February 14, 2008
    Applicant: Leader Energy Services Ltd.
    Inventors: Swen Theil, Rick Bower
  • Patent number: 7029589
    Abstract: A method or process of treating a contaminated fluid (10) having at least one contaminant having a property selected from the group consisting of being volatile, hazardous, tacky and a combination thereof is provided. The method comprises contacting the contaminated fluid with an effective amount of an agent (12) selected from oxidizing agents, free radical producing agents and a combination thereof for an effective amount of time to convert a substantial amount of the at least one contaminant to at least one corresponding modified contaminant having a property selected from the group consisting of being non-volatile, less volatile than the converted contaminant non-hazardous, less hazardous than the converted contaminant, non-tacky and a combination thereof; and generating a treated fluid (14) having a level of the at least one contaminant and of the at least one corresponding modified contaminant to allow the treated fluid to at least meet requirements for release, reuse or further treatment.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: April 18, 2006
    Inventor: Michael P. McGinness
  • Patent number: 7022295
    Abstract: A gas siphon type reactor (10) is used to carry out a three phase chemical reaction under pressure, such as the reduction of uranyl nitrate to uranous nitrate by hydrogen, in the presence of a catalyst made up of platinum on a silica carrier. The control of the pressure in the reactor (10) is provided by regulating the liquid and gas flow rates from separator (52), into which the liquid and the gas leaving the reactor (10) are routed. The liquid in the reactor (10) is tapped from a lateral branch pipe (32) fitted with a filter (36) and emerging in the upper area (30), behind a profiled wall (34).
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: April 4, 2006
    Assignee: Compagnie Generale des Matieres Nucleaires
    Inventors: Pietro Bilardello, Nicolas Durupt, Renaud Pontier
  • Patent number: 6955705
    Abstract: Method and system for compressing and dehydrating wet natural gas produced from a low-pressure well using a rotary screw compressor. A dehydrating agent is combined with wet natural gas within a rotary screw compressor. Operation of the rotary screw compressor causes compression and dehydration of the wet natural gas to produce a compressed dry natural gas. Engine exhaust produced by the engine which powers the rotary screw compressor may be used to remove water absorbed by the dehydrating agent and thereby recover the dehydrating agent for re-circulation in the system.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: October 18, 2005
    Assignee: RDC Research LLC
    Inventors: Richard P. Cheney, Brad Salzman
  • Patent number: 6551380
    Abstract: A gas separation apparatus and process has a first pressure swing adsorption (PSA) unit (110) receiving feed gas (112), which comprises a first and a second component. First PSA unit (110) produces first product gas (114) pre-dominantly containing the first component, and first off gas (116) containing at least some of the first component and second component. Compressor (120) is coupled to first PSA unit (110) to compress first off gas (116) to form compressed off gas (126), which is passed downstream to absorber unit (130), which employs a solvent to remove at least part of the second component from compressed off gas (126), forming an enriched compressed off gas (136B). Second PSA unit (140) receives enriched compressed off gas (136B) and produces second product gas (142) which predominantly contains the first component and a second off gas that is sent to waste or reformer burner (150).
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: April 22, 2003
    Assignee: Fluor Corporation
    Inventors: Satish Reddy, Ravi Ravikumar